Institutional user account have several additional issues to consider during configuration, including:
Passwords for institutional users must be 17 characters or less. For detailed information on creating and configuring user accounts, see the System Administration module reference guide.
If your system uses Active Directory or LDAP Authentication, institutional users cannot be automatically created based on the Active Directory or LDAP settings. Institutional users must always be manually created and added to the correct institution before the user can be authenticated using Active Directory or LDAP.